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Finding the Fourth Proportional to 192,355.80, 288,539.59 and 65,994.28

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Solution

The fourth proportional to 192,355.80, 288,539.59 and 65,994.28 is: 98,993.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,355.80 : 288,539.59 = 65,994.28 : x
  2. Step 2: Convert to fraction form
    192,355.80/288,539.59 = 65,994.28/x
  3. Step 3: Cross multiply
    192,355.80x = 288,539.59 × 65,994.28
  4. Step 4: Simplify right side
    192,355.80x = 19,041,963,133.84
  5. Step 5: Solve for x
    x = 19,041,963,133.84/192,355.80
  6. Step 6: Final answer
    x = 98,993.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.